Help please - Tuner gone bad on a series 2

I am having a really odd problem that I can't figure out that is relative to this discussion.

I had a DSR6000 in my living room for 5 years and an it's twin Hughes model in my bedroom for 5 years. Anyway I had a hard drive problem with the Hughes and retired it as got a warranty replacement R10. But I moved the DSR6000 into the bedroom were the Hughes was and put the newer R10 in the living room. For the first few weeks everything was fine.

Now here is my problem: The DSR6000 (which had worked fine for 5 years) which is now in the identicle location as the Hughes (also worked fine for 5 years) is having problem. After a few miniutes of watching it looses the signal from one of the tuners and I get the annoying message. I go to the satellite setup an my even transponders have zero signal. I an change to an odd transponder and get the high signal. But even after I "save" this signal it reverts back to an even one and I get back to the same loop. Why does it like the even ones so much?
If I change the cables in the back the satellite it looses changes, so I don't think it is the tuner themselves. Any ideas? Any reason why it can't keep a 'good' transponder?

You can't change the TP that is used as all of them are used. Each channel is assigned to a TP and the receiver tunes the appropriate one for the channel selected. In your case it's an even TP that is needed. Since you are losing all even TPs this means that the 18v switching signal to the LNBs is getting reduced. You have a cabling or connection problem.

My friend gave up then gave me his HDVR2 because of this exact problem. Found this thread when I was looking into the problem.

The problem with this unit is if any 2 (out of the 3) outputs are being used. Any combination of the 1 S-video and 2 composite would cause tuner #2 to go out. Yes, even when using both composite outputs! So my money is on a power supply problem.

I have the HR10-250 unit and I have tuner 2 problems. Its hooked up via the HDMI to the TV and it happens in waves, it used to do it in the past, then it has gotten alot worse recently. In the past a simple reset would have it be fine for months, now it wont go away. If you are watching tuner 1 you see constant appearance of No signal on turner 2 warning error. If you are watching or see a recording form tuner 2 you just get choppy programming.

Svideo cable removal just worked for me. I have 3 HDVR2's but one of them started pixelizing bad on some channels. I tried the lines to the tivo but the lines were fine. Removed the svideo cable and replaced it with a composite and its back to perfect.

I'm reading with great interest the thread about the S video cable causing problems. Sadly, the switch to component did not solve mine. I have the same symptoms, certain channels pixelate in sporadic waves. 501, for example, is pretty much unwatchable. I'm thinking bad tuner, and am looking for a philips DSR7000 logic board. Meanwhile, I have a second directivo box, a hughes, which functions normally.

So then, to the point, will any of you please describe a procedure using my two satellite feeds, and my two directivo units (one good, one sketchy) that will diagnose this as a line/connector/dish problem or bad tuner, oscillation overthruster intersteller overdrive insert-name-of-electronic-component-I-don't understand here problem. Transponder polarity? Tuner one, tuner two. Even channels, odd chanels? Help me Mr. Wizard.

From your description, you have a dual output round dish with an external 2x4 multiswitch in order to provide four outputs to two DVRs. Also, you changed from s-video to "composite" connections, not "component".

Troubleshooting tips.
1) swap inputs on back of problem unit to see what happens.
2) bypass multiswitch and connect the unit directly to the dish.
3) use various combination of outputs from multiswitch.
4) try the RF output to the TV.

Hello everyone, I wanted to see if someone could shed some light on a problem I am experiencing, I have an HR10-250 with HD access, sometimes when I am watching an HD channel on tuner 1 my machine will tell me searching for signal on tuner 2, I tried swapping the lines on the rear of the box and it exhibits the same problem on now it says searching for signal on sat 1, this should confirm that it isnt the box right? This must be a wiring or sat problem correct? The weird thing is that it only happens when I am watching an HD channel, not on the SD channels

I, too, have been having picture breakup problems that I isolated to tuner 2, but I do not use s-video. However, I do use both composite video outputs. I found that my problems went away when I disconnected the cables from one of the outputs. So in my case, the problems have to do with driving both composite outputs.

My DirecTivo is an older Samsung unit. I had been using both video outputs for a long time before the problems began. Not sure why the problems began - power supply weakening over time? other?

I'll add a data point too. We have three old DTivos that have been working well for years. The Hughes GXCEBOTD and DirecTV DVR R10 are behaving well, but the RCA DVR40 has been experiencing the Sat 2 input problem for several months. It had become increasingly annoying so today, after finding the posts on manipulating output cables, I did a little troubleshooting.

Both composite video outputs are connected. S-video is not being used. When either one of the composite video outputs is disconnected, the Sat 2 problem goes away. So, I will use only one output for now. If a fix turns up later in this forum, maybe I can restore full functionality.

This forum is awesome. It's helped me a number of times in the past. Thanks.

I've learned a little more about my tuner 2 problem. I still have problems even with only 1 composite video connection, depending on the transponder tuner 2 is receiving from. I'm still checking, but so far I've found I get pretty significant problems for channels on transponders 8, 9, 16, 17, 24, 25, and 27. Channels on other transponders seem have little, if any, problems.

I should also point out that the problems become much worse on all transponders when I use the second composite video connection. When I use a single composite video connection, it does not matter which one I use - problems occur with the transponders in the above list.

Tuner 1 is clean as a whistle with either 1 or 2 composite video connections on all transponders.

So, all is not perfectly well with tuner 2 in my case - even when using a single composite video connection...

I'm curious whether any of you who've had problems with multiple video connections (s-video + composite video or 2 composite video) and corrected it by using only a single video connection still have problems when recieving from certain transponders?

... I'm curious whether any of you who've had problems with multiple video connections (s-video + composite video or 2 composite video) and corrected it by using only a single video connection still have problems when recieving from certain transponders?

Click to expand...

Changing from two composite video outputs to one made a big difference for me. However, I found I still had some digital garble on some channels. The problems are with transponders 15, 23, 25, 27, and 32 (there may be more but I stopped checking after awhile). The signal strength on each looks fine. I found I could clean up the channel by switching to the other tuner, though I tried this in only a few cases so I don't know if this will always work.

txhawkeye said:

... I've found I get pretty significant problems for channels on transponders 8, 9, 16, 17, 24, 25, and 27

Click to expand...

Transponders 8, 9, and 24 seemed to look clean on the channels I checked.